【英文标准名称】:StandardSpecificationforHotIsostatically-PressedAlloySteelFlanges,Fittings,Valves,andPartsforHighTemperatureService
【原文标准名称】:高温设备用热等静压压制的合金钢法兰,配件,阀门和部件的标准规格
【标准号】:ASTMA989/A989M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:A01.22
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:合金钢;铬-合金钢;铬-钼合金钢;气体雾化粉末;管道应用件;压力容器部件;钢法兰;钢阀
【英文主题词】:alloysteel;chromium-alloysteel;chromium-molybdenumsteel;gas-atomizedpowder;pipingapplications;pressurecontainingparts;steelflanges;steelvalves
【摘要】:1.1Thisspecificationcovershotisostatically-pressed,powdermetallurgy,alloysteelpipingcomponentsforuseinpressuresystems.Includedareflanges,fittings,valves,andsimilarpartsmadetospecifieddimensionsortodimensionalstandards,suchasinASMESpecificationB16.5.1.2Severalgradesofalloysteelsareincludedinthisspecification.1.3Supplementaryrequirementsareprovidedforusewhenadditionaltestingorinspectionisdesired.Theseshallapplyonlywhenspecifiedindividuallybythepurchaserintheorder.1.4Thisspecificationisexpressedinbothinch-poundunitsandinSIunits.Unlesstheorderspecifiestheapplicablex201C;Mx201D;specificationdesignation(SIunits),however,thematerialshallbefurnishedtoinch-poundunits.1.5Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasthestandard.Withinthetext,theSIunitsareshowninparentheses.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.1.6Thefollowingsafetyhazardscaveatpertainsonlytotestmethodsportions,8.1,8.2,and9.5-9.7ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:49_025_10
【页数】:8P.;A4
【正文语种】: